Question about 1985 Ford Ranger

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Ryes i have a 1985 ford ranger pick up and the problem is the key switch when I turn the key to the off position the truck keeps running

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This is either a bad solenoid, or the ignition switch itself is bad.
Locate the solenoid which on fords is usually on the fender in the engine compartment on the driver side. It looks a bit like a diamond and has 4 bolts, one going to the battery, one to the ignition, starter, and I believe the coil. Locate the one coming from the ignition switch (where key goes) and see if it is sending power with the key off. If it is the ignition is bad and needs to be replaced. If it is not, check the wire going from the solenoid to the coil. If it has power the solenoid is bad, just make sure you check the other wire 1st cause if the ignition is bad the solenoid will have power going to the coil when off.
Hope thats not confusing.

Posted on Aug 25, 2010

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You dont say what model?but i assume a diesel.First the problem is not caused by the key switch,but the shut off valve on the engines main fuel pump,its mostly a brass type fitting and you will see it on the pump it has two wires coming from it,inside is a small piston and the outer has is magnet , when you find it and with the engine running pull the lead off and you will see the engine runs on,needs replaced but not costly.adrian,,,,,,,,,,

Posted on Aug 25, 2010


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